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Diss Factsheets
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EC number: 695-268-4 | CAS number: 571188-59-5
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Feb - May 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 014
- Report date:
- 2014
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.2 (Acute Toxicity for Daphnia)
- GLP compliance:
- yes
Test material
- Reference substance name:
- tert-butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate
- Cas Number:
- 571188-59-5
- Molecular formula:
- C14H22N4O2
- IUPAC Name:
- tert-butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate
- Test material form:
- solid: bulk
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- Twenty daphnids per group (5 per replicate, quadruplicate) were exposed to an untreated control and to LEE011-A2 concentrations of 2.2, 4.6, 10, 22, 46 and 100 mg/l. The total exposure period was 48 hours and samples for analytical confirmation of actual exposure concentrations were taken at the start and at the end of the test.
Test solutions
- Vehicle:
- yes
- Details on test solutions:
- Preparation of test solutions started with the highest concentration of 100 mg/l applying a short period of ultrasonic treatment (5 to 6 minutes) followed by magnetic stirring (~1 hour) to accelerate the dissolving of the test substance in the test medium. The lower test concentrations were prepared by
subsequent dilutions of the highest test concentration in test medium. The final test solutions were all
clear and colourless.
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- Daphnia magna (Crustacea, Cladocera) (Straus, 1820), at least third generation, obtained by acyclical parthenogenesis under specified breeding conditions.
In-house laboratory culture with a known history.
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
Test conditions
- Test temperature:
- 18-22°C
- pH:
- 6.0-8.5
- Dissolved oxygen:
- >= 3 mg/l
- Reference substance (positive control):
- yes
- Remarks:
- Test medium without test substance or other additives
Results and discussion
Effect concentrationsopen allclose all
- Key result
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- >= 28 - <= 49 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Key result
- Duration:
- 24 h
- Dose descriptor:
- LC50
- Effect conc.:
- >= 34 - <= 61 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The 48h-EC50 was 37 mg/l based on analytically confirmed nominal concentrations (95% confidence interval between 28 and 49 mg/l).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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